Remarks. The description and sketches of ossicles given by Ohshima (1912) are so precise that most of our observations yielded no further variation. However, the existence of the thin long rod ossicles in the pharynx ( Fig. 3BView FIGURE 3), is here reported for the first time; these may be useful in future studies of the systematics of Amphicyclus. Furthermore, we did not observe any ossicles in the body wall reported by Ohshima (1912) to be present. Ohshima (1912) reported that imperfect tables were found very sparsely from the body wall in only one young specimen (body size was not reported). Those tables had two rudimentary pillars with four central and some peripheral holes. No ossicles were observed in the body wall of WMNH-INV-2015-311 ( Fig. 1AView FIGURE 1, Table 1), a difference which is likely attributed to the specimen’s small size.